Freeze and Fuse Pate-de-Verre Technique.

In a clean container, pour some distilled water and ADD the powder to the
water. This way, bubbles are released as the dry powder hits the surface
of the water. DO NOT start by adding the water to the powder. The
amount of water will depend on how much volume of wet powder you
need. I find using a spoon to put the powder in the water works
better than dumping it in from the bottle, which creates extra glass
dust. You want the powder to be soaked but not liquid.

2) Pack the wet powder into the mold.
Again,I find that using a spoon to place the wet glass in the mold works
better than just dumping it in the mold. (more on molds on the next
page)
3) Tap, tap, tap the mold.
Once the wet glass powder is in the mold, you need to tap the mold from all
sides to get all the bubbles out. This will bring water to the surface,
which can be blotted off with a paper towel. Repeat the tapping
and the blotting until the surface is dry, but not cracking. You
can tell when its dry because it will be a dull color. If there is a
shine to it, there is still moisture there